Winding machine



Jan. 2, 1940. A, B, CARR E -r AL 2,185,399

wINDING MACHINE r Filed May 19, 1938 11 sheets-sheet 1 VII/7% .I

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Jam 2, 1940.

A. B. CARR ET AL WINDING MACHINE Filed May 19, 1938 l1 Sheets-Sheet 2 INVENTORS 4L 65ers .CA/ee.

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Jan. 2, 1940.

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.WINDING MACHINE Filed May 19, 1938 11 Sheets-Sheet 8 l Q Q Q N lo @zu Y glu N auiclwroRNEYs.

Jan. 2, 11940. A. B. CARR E-r AL 4 2,185,399

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Jam. 2, i940. A. B. CARR ET AL 2,185,399

WINDTNC- MACHINE 2li-w ATTORNEYS.

Jan. 2, 194D. A, B, CARR E1- AL 2,185,399

WINDING MACHINE Filed May 19, 1938 11 Sheets-Sheet ll Fal @E45 A age 344 i' SYM 222;, ATTORNEYS,

Patented Jan. 2, 1940 UNITED STATES eATEr l oFFics WINDING MACHINE Albert B. Carr and Robert H. Fluker, Atlanta, Ga.; said Fluker assigner to said C'arr Application May 19, 1938, Serial No. 208,811

24 Claims.

5 automatically producing wrappers as needed.

An object of the invention is to provide an efiicient and durable machine capable of automatically rapidly winding calendars or the like into compact substantially uniform cylindrical shape; making, wrapping and sealing the wrapper around the wound calendar, thus facilitating handling, packing or mailing of the calendar.

The invention consists in the novel features, arrangements and combination of parts embodied by way of example in the apparatus hereinafter described as illustrating the preferred form of the invention, and the invention will be more particularly pointed out in the appended claims.

Further objects and advantages of the invention tion will more fully appear from the following description taken in connection with the accompanying drawings which show, by way of example, the present preferred embodiment of the invention.

Referring to the accompanying drawings, in which the same reference characters indicate the same parts in the various views:

SHEET 1 Fig. l is .a left-hand side elevation of the winding and wrapping portion of the machine;

Fig. 2 is a plan view of the Winding chuck, somewhat enlarged;

Fig. 3 is an end elevation of the jaw end of said winding chuck, somewhat enlarged;

Fig. 4 is a longitudinal sectional View of said winding chuck taken along its axis, somewhat enlarged;

Fig. 5 is a cross-sectional view of the winding chuck taken transverse its axis, somewhat enlarged;

Fig. 5A is a side elevation, partly in section, of the winding chuck mounting showing adjustability, somewhat enlarged;

SHEET 2 Fig. 7 is a side elevation of the mechanism for operating the chuck jaws;

Fig. 8 is a side elevation, somewhat enlarged and partly in section, showing relative positions 55 of certain parts when the feed grippers are positioned to engage the calendar to feed it to the winding chucks;

Fig. 9 is a similar View showing relative positions of said parts after the grippers have fed the calendar to the chuck jaws;

SHEET 4 Fig. 10 is aside elevation of a gripper jaw showing releasing means therefor;

Fig. 11 is a sectional view taken on line H-ll of Fig. l2, somewhat enlarged;

Fig. 12 is a side elevation of the gripper and operating mechanism;

Fig. 13 is a side elevation of a gripper, somewhat enlarged, and partly in section;

Fig. 14 is a side elevation of the machine partly in section and with a portion of the left-hand panel broken away to show the relative position of certain parts;

Fig. 15 is a, front elevation showing cam and lever for operating the grippers;

Fig. 16 is a rear elevation of a portion of the mechanism for operating the grippers and pressure rollers;

Fig, 1'7 is a side elevation of the registering roller and supporting levers;

Fig. 18 is a sectional view taken at |8-l8 of Fig. 19;

Fig. 19 is a front elevation of the registering roller and levers, showing bumper blocks;

Fig. 20 (Sheet 8) is a side elevation of the operating mechanism for the throat forming roller;

SHEET 5 Fig. 21 is a perspective View, somewhat enlarged, of the wrapper feeding mechanism frame;

Fig. 22 is a side elevation, somewhat enlarged, of mechanism for keeping the top of the wrapper stack level when pull cord wrappers are used;

Fig 23 is a side elevation, somewhat enlarged, showing the mechanism for operating the wrapper suction lift;

SHEET 6 Fig. 24 is a front elevation of the wrapper feeding and gluing mechanism;

SHEET 7 Fig. 25 is a plan View of the mechanism shown in Fig. 24;

SHEET 8 Fig. 26 is a side elevation of operating mechanism and wrapper feeding arms;

Fig. 27 is a sectional View taken at 2'l-2'I of Fig. 24;

Fig. 28 is a sectional view of pipe connection manifold taken at 12S-28 of Fig. 25;

Fig. 29 is a front elevation of suction head wrapper lifting mechanism;

Fig. 30 is a diagrammatic sketch showing air pump and air line connections;

Fig. 31 is a sectional view of a portion of the wrapper feeding arms, showing details of construction;

Fig. 32 (Sheet 4) is a view showing details of latch and tripping mechanism parts for the wrapper feeding arms;

Fig. 33 (Sheet 8) is a sectional plan view, considel'ably enlarged, of certain details of Figs. 3l and 32;

Fig. 34 (Sheet 8) is a side elevation 0f Fig. 29 showing arrangement of parts to tilt the suction 2o head;

Fig. 35 (Sheet 1) is a right-hand sideelevation of the machine with wrapper making portion removed;

' SHEET 9 Fig. 36 is aside elevation of portion of wrapper SHEET 10 Fig. 40 is a side elevation of the machine show- 40 ing wrapper making mechanism;

Fig. 4l is a plan view of a portion of said wrapper making mechanism;

Fig. 42 is a crosssectional view taken at i2-@2 of Fig. 4l; Fig. 43 is a similar view taken at I3-i3 of Fig. 4l;

Fig. 44 is a front elevation showing wrapper positioning mechanism;

SHEET 11 Fig. 45 is a front elevation of the machine showing wrapper making mechanism, with cer tain parts illustrated in Fig. 44 omitted for the sake of clarity, and 5 Fig. 46 is a cross-sectional View taken at i6-d6 of Fig. 45.

Before taking up a detailed description of the machine, a general description will be given setting forth some of the most important features in a general way. Directly opposite and supported in suitable side frame panels are the continuously rotating winding chucks driven by sprockets and chain from a drive shaft connected to a source of power controlled by a clutch or electric line switch. By suitable means the chuck jaws are made to move back and forth axially in the chuck housing and to open and close, thus engaging and releasing the calendar, or other article being operated upon, before and after it is wound and wrapped, respectively. Suitable means to be described hereafter is provided to properly position the calendar for proper engagement by chuck jaws. By suitable means the irst convolution of the calendar is controlled, and

continuous uniform pressure exerted on the entire width of the calendar thereafter until ejected. Means is provided to prevent wrinkling and tuckering of the sheets in the convolutions. Means is provided for successively feeding wrappers and putting a film of adhesive on a portion 5 of each wrapper to make a proper seal. Means is provided to make wrappers from a roll of paper and attach a pull string to the paper from which the wrappers are made. Means is provided to cause .each part of the machine to coact and 10 function in proper relation to other parts.

In the preferred embodiment of the invention the machine may be utilized for winding and wrapping pamphlets or the like in cases where ready-made wrappers are placed in position on 15 the machine ready for use, as well as where the wrappers are made by the machine as needed from a roll of suitable sheet material. ln order to simplify an understanding of the invention, those features of the machine will be rst de- 20 scribed relative to the use where ready-made wrappers are to be employed, and in conjunction with such disclosure the remaining portions of the machine having to do with the making of the wrappers will be omitted from the drawings. 25 Thereafter, the complete machine will be indicated by drawings in which the wrapper making mechanism will be illustrated in detail and the remaining portions of the machine previously described will be illustrated only to the extent 30 of such parts as are necessary to a complete understanding.

Winding chucks Referring to the drawings, and more particu- 35 larly to Figs. 146, inclusive: I and I indicate respectively left and right side panels of machine provided with and supported on legs 2 2 and said panels are held in laterally spaced position by front and rear tie rods 3 and 4 and co- 40 operating rod nuts. Winding chucks designated in their entirety as 5 and 5 are each journaled (Fig. 5A) in bearings such as 6 suitably secured in respective panels I-I; and the chucks are held in axial position (Figs. 6 and l) by respective collars Lil', secured to the chucks inside the panels, and the hubs or" the sprockets 8 8' secured to the chucks outside the panels. Sprockets 8 8 (Figs. 1 and 6) are driven respectively through chains 9-9, which are geared to and driven by sprockets I-I, rigidly secured to and rotatable with power shaft I I which is supported in suitable bearings fastened to panels i-l. On the right hand outer end of shaft II is securely fixed a pulley .I2 driven through4 belt I3 from a suitable source of power such as electrical motor l mounted on a shelf I5 on the outside of panel l. The motor I/-l is controlled by a switch placed on machine frame at any convenient position. If other source of power is used to drive the machine, a clutch and lever is used as a control means.

The winding chucks 5 5 each comprise (Figs. 2-5, inclusive) a hollow cylinder I6 with inner and outer surfaces machined and having a guide 65 bearing Il litted therein flush with one end and pinned thereto. The bearing Il is provided with an axial guide bore coincident with the axis of the cylinder I6 and into which is slidably tted push rod I8 to one end of which is rigidly secured a 70 block I9. A pair of jaws 20 are pivotally attached to I9 at one end and the other ends extend through a slot in face plate 2|, which is fixed. to the outer end of cylinder l5 as by being screwed to a collar 22 Welded to the cylinder.-75

The outer ends of jaws 20 are urged apart by a helical compression spring 23 positioned therebetween and seated in cooperating recesses in said jaws. In the jaw end of the cylinder i6 are fitted two plates 25 which are spaced apart parallel to each other by blocks such as 25 and held in place as by pins 26. These plates and spacers extend into the cylinder forming a rectangular passage in which said block I9 is adapted to move. Between the plates 24 and on each side of the jaws 25 are rollers such as 2 whose axes are journaled in said plates and against which said jaws 20 are spring pressed by spring 23. Push rod I8 carries fixed on its outer end, as by a set screw, a grooved collar 28 so positioned that when push rod i8 is moved to the right the jaws 20 are similarly moved, causing them to close due to the tapered portion of the jaws coming between the rollers 2; and conversely, when the push rod i3 is moved to the left, the jaws are drawn into the chuch casing and are forced apart or opened due to action of coiled spring Z3. A limit pin 29 is placed in the rod i8 to limit movement of the rod to left. The mechanism for operating these chucks to effect the winding will now be described.

Winding means Keyed on driven shaft Il, on the inside of panel l (Fig. 6) is spur pinion 30 which meshes with an intermediate gear 3l rotatably fitted on stud shaft 32 bolted to side panel i. Fastened to hub of 3l and made to rotate with it is intermediate gear 35 which meshes with and drives gear 3d keyed to timing cam shaft 35 which is journaled in bearings supported in side panels l of the machine. The said gears 3U, 3l, 33 and 3d are such that shaft ll makes preferably twenty revolutions while shaft 35 makes one revolution, and since the chuck sprockets 8-8 and the drive sprockets l-IQ' on power shaft il have the same diameter the speed ratio of chucks 5 5 and timing shaft 35 is a constant; and if the chuck jaws are open at the beginning of a revolution of cam shaft 35 they will be in the same position at the beginning of every revolution of shaft 35. The importance of this feature will be more apparent when the operation of the machine is described later herein.

Keyed to cam shaft 35 (Fig. 6) adjacent gear td is a cam 35 for actuating the jaws of winding chucks 5 5 in an axial direction (see also Fig. 7, Sheet 3) Cam 35 is in contact with a cooperating cam roller 3l carried on arm 38 pivotally supported at its upper end on a cross shaft 39 supported on side frames or panels l-I. Arm 35 is held in axial position by set collars (not shown), and its lower end is pivoted at d to the forward end of a crank link lil, whose rear end is pivotally connected to a crank pin 52 screwed into the under side of a crank disc d3, which is rotatably journaled on the lower end of a vertical spindle it dependent from a sup-- porting bracket 55 rigidly clamped to the tie rod fl. A tension coil spring 55 attached at its rear end to panel l and at its front end to crank link il holds cam roller 3l on cam 36. Crank disc d3 carries screwed into the upper face thereof crank pins ll-fil to which are pivotally connected the inner ends of the respective crank links lit- 53' (see Fig. 6) which pass outwardly through holes in side frames l-I and whose outer ends are pivotally connected respectively to the rear ends of chuck jaw actuating arms t9-55' pivotally supported at their median portions on brackets 50-50 attached to the respective side frames I-I and having their forward bifurcated ends in operative engagement with the grooved collars 28--28 of the respective It is obvious that as cam 36 revolves, the chuck jaws are made to open and close, also to move back and forth through slot in face plate of chuck.

Feeding grippers Referring to Figs. 6, 8 and 9: a pair of feeding grippers designated in their entirety as 5i-5l, respectively, are supported on the upper ends of respective arms 52-52', whose lower ends areadjustably fixed to a cross shaft 53, journaled in side frames l-l, for oscillation thereby. The details of construction and arrangement of the grippers will rst be described, and thereafter their means of operation from the cam shaft 35- ative nuts holding the plates in assembled po-So siticn. The plate 55 has integrally secured thereto a bearing sleeve 56) whose outer diameter is journaled in the upper end of arm 52 for relative rotative movement with respect thereto but fixed axially thereon by means of spacing bush-` ings 5E-52 held in adjusted position by nut 63. Journaled on the rear pins 53-5'1 are a pair of jaw blocks S45-55 provided with cantilever leaf springs 55-57 whose rear ends are rigidly anchored respectively to said blocks and whose for-Y ward ends rest against the respective pins 53-59.y Upper block 5d has rigidly secured thereto as by rivets jaw elements 68 and 69 providing an upper jaw 'Ell having a hook end. On the inner face of jaw 'ED a leaf spring 'il is attached at its rear end as by a rivet l2, and its front end stopping short of and normally positioned flush with or slightly beyond the inner face of the hook, so as to yield under pressure and recede behind the hook. Similarly. block' 65 carries elements 'F3-JM forming a lower jaw 'l5 whose straight outer end lies within the hook when the jaws are closed under the inuence of springs The jaws 'I6-l5 are adapted to be opened by a cam lli fixed to the cam shaft Il (Fig. l1), one end of which is journaled in plate 54 and the other end of which extends through a journal provided in plate 55 and out through sleeve bearing Ei!) in which it has a free rotatable nt, and beyond which it projects toward the center of the machine (Fig. 6) where it is connected to one end of a universal coupling 18, whose other end is connected to the inner end of the corresponding cam shaft il" operating the jaws of the right hand gripper 5l.

Attached rigidly to the rear of the housing of gripper 5l is a guide rod 'i9 (see also Figs. 12, 8 and 9) whose rear end is axially slidably mounted in a guide bearing 35 rotatably jour'- nale-d for oscillation in a bracket 8! whose lower end is adjustably rigidly clamped to` the rear tie rod 4.

Also rigidly clamped to tie rod l adjacent the inner side of bracket 8| is a bracket 82 into the forward end of which is rigidly secured a forwardly extending trip rod 83 carrying trip posts 84-85 rigidly clamped thereto in axially spaced relation. Pivotally supported on said posts are trip blocks @5*8? which are resiliently held outwardly toward their respective posts as by springs (not shown) so as to abut against adjusting screws Bil-89. The upper ends of the trip blocks are provided with offset legs in respective operative alignment with respectively cooperating trip levers or arms 99-95 rigidly secured to the cam shaft l? which, as previously stated, serve to open the feed gripper jaws iE-'i5 It will now be readily understood that as the gripper arms 52-52 oscillate back and forth, the grippers l-il are reciprocated forwardly and rearwardly in a wide arc, the guide rods 'F9-'i9' holding the grippers substantially parallel relative to each other and to the side frames in their path of travel, with the trip arms 9 |9| engaging the legs of trip blocks iii-8l toward the end of the forward stroke to open the jaws lll-l5 and 'ith-'E52 and similarly arms 90-98' engaging the legs of trip blocks S-tt" toward the end of the rearward stroke to open the said jaws. Figs. 8 and 14 show the extreme foremost and rearmost positions of the grippers.

The gripper arms 52-52 are oscillated by the rotary oscillation of their supporting shaft 53 (Figs. 6 and 14) as follows. Shaft 53 has rigidly secured thereto adjacent side frame l an upwardly extending crank arm 92 (see also Fig. 16), whose upper end is `pivotally attached to the rear end of a link 93 pivotally attached at its forward end to a cam roller arm 94, whose upper end is pivotally supported at 95 (see also Fig. 15) to frame i. Arm 94 has attached intermediate its ends a cam roller et in cooperative engagement with a cam 9i securely fixed to cam shaft 35; the cam roller 96 is urged against the cam 9'! by a helical tension spring 99 whose rear end is attached to the lower extremity of the arm 94 and whose front end is attached to frame This spring, therefore, also acts to resiliently actuate the forward movement of the connected link train, gripper arms 52-52 and grippers 5i-5|, thereby providing a yielding drive should the gripper jaws be obstructed during their forward movement, as by an article being operated upon.

Pressure roller means Referring to Figs. 16 and 14: shaft 53 carries fixed thereto next to side frame l a cam plate 99 which moves back and forth with 53 as it is oscillated as described above. Cam lever |99 carries cam roller 59| which is held against face of cam 99 by tensioned coiled spring |92, one end of which is fastened to the cam roller spindle and the other end fastened to machine frame S. Cam lever lii is pivotaily supported by stud |93 which is screwed into machine frame and projects inwardly therefrom. The upper end of cam lever Si? is fastened pivotally to one end of link |94, the other end of which is fastened pivotally to crank arm |95 which extends downwardly from hub of segmental gear |96 (Figs. 8 and 9). segmental gear i9@ is fastened to shaft lili as by a seJ screw and meshes with another segmental gear H33 positioned above and set screwed to shaft |59, which is journaled in suitable bearings located in the side frames Set screwed to shaft |99 adjacent the respective frames I-l are arms liti-l lil which extend to the right transversely of axis of shaft |09. A pair of like arms lill i l are similarly fastened to shaft |07 and positioned directly beneath Bumper Toller A shaft ||4 (see Figs. 6, 8 and 9) is rotatably fitted to bearings in side panels of frames of the machine. Bumper roller arms IIS-H5 are positioned and fastened to shaft i4 at spaced points just inside the respective grippers 5|-5|, and supported on the forward end of said arms is a bumper roller device, designated in its entirety as H6, positioned between and adjacent grippers 5|-5i so that when the gripper jaws move forward they do not strike said arms of roller device ii@ but pass by adjacent ends of said roller and as they return with a calendar the calendarc strikes the rollei` device H6. The roller device (Figs. 17, 18 and 19; Sheet 4) comprises a rod rigidly fastened in bearings |8| I8 at the ends of arms |5| I5 by any suitable means, such as set screws, and carries at its mid point a bumper lli) rigidly pinned thereto. Adjacent each rod bearing and integral therewith are provided bumpers l2ll-i2' (see Fig. 19). These three bumpers have slightly concave faces serving to assist the formation of the roll On the article being operated upon. Between the bumper l i9 and |29 and |275 and freely rotatably mounted thereon respectively are roller sections |2||2|. Near one end of shaft ||l| and adjacent the side panel i is positioned crank arm |22 (Figs. 8, 9f-

and 14), the hub of which is pinned to shaft ||4 and which projects rearwardly in a direction parallel to plane of side panel of machine and is provided at its rear end with adjusting stop screw |23 which is spring pressed against limit:l

stop l2@ fastened to frame l by any suitable means, such as cap screws. The helical tension spring |25 has one end fastened to arm |22 by means of a projecting lug and the other end fastened to stud projecting from side panel compensating roller Clamped on tie rod 3 (see Figs. 6 and 14) by clamping screws |2i-i26 are brackets |2'I-l2l which provide bearings in which is rotatably supported a shaft |28. The hub of a crank arm |29 is pinned to |28, the lower end of which is pivotally attached to one end of a link |30 whose opposite end is pivotally attached to the lower end of a crank arm |3| whose hub is pinned to shaft 39 and receives motion therefrom by means to be hereinafter described. A crank |32 (Fig. 6) is pinned to shaft |28 adjacent bracket |27', and link |33 pivotally connects said crank to a transverse tie rod |34 connecting arms |35 and |35 (see also Figs. 9 and 20) which are provided at their upper ends with journals for receiving and rotatably supporting a compensating roller |36. The lower ends of arms ISE-|35 are provided with bearings by which they are rotatably supported on a shaft |31 (Figs. 20, 8 and 9) and are held in position by means of set collars (not shown). Shaft |37! is journaled at its right end (Fig. 6) in crank arm |38 and at its left end in the forwardly extending arm of a bell crank |39; said cranks being rigidly pinned to and supported by a shaft M0 suitably journaled in side frames The other arm of the bell crank |39 extends upwardly and is pivotally connected with one end of a link iliI, the other end of which is connected pivotally to a crank arm |42 whose hub is rigidly pinned to the shaft |28 (see Figs. 6 and 20).

Shaft 3S carries fixed thereto, adjacent frame I', a crank arm |42 provided with a cam roller IM in operative driven engagement with a driving cam |45 secured on cam shaft 35; so that as shaft 35 rotates, cam |45 causes an oscillation of shaft 39, crank arm I3 I, link |30 and crank arm |29. It is obvious that as crank |29 is moved back and forth a rocking motion is transmitted to shaft |28 and connected arms |32 and |42, and that as |32 is moved forward |52 is moved to the rear, and that the movement of |32 causes arms |35 and |35 to move to the right, moving roller to the right; and that as crank arm |42 is moved rearwardly IM moves readwardly, causing arm |39 to raise shaft |31 on which arms |35 and are supported; and by this means roller |35 is raised and as a result of the combined motions imparted to said roller it is moved to a position in which it is parallel to and adjacent to a line running axially through centers of winding chucks 5-5.

Feed table and calendar stop At the input or forward end of the machine a feed table or runway is made (see Figs. 6 and 8) of flat strips |45 spaced apart and riveted to spaced apart angle irons such as |41, the ends 'frames is a pair of flat springs |48, one

end of which is fastened to forward angle iron |41, the other end being bent upwardly at right angles to plane of runway surface and extending afshort distance above the surface of the runway. Fastened to the under side of said spring with rivets and adjacent its bent end is bracket |49 (Fig. 8) provided with a bearing to which the upper end of a link |50 is pivotally attached, and whose lower end is similarly attached to the rear end of double end crank arm |5| which is rigidly keyed to a hollow shaft |52, and whose front end carries a cam roller |53 which is spring pressed against a cam |54, the hub of which is set screwed to cam shaft 35. Said hollow shaft |52 is rotatably journaled on shaft |40 and is held in position by set collars adjacent its ends. A helical tension spring |55 has one end fastened to crank arm |5| and the other end fastened to one of the angle irons |41. A notched-out place (not shown) in angle iron M1 directly beneath spring |48 allows said spring to be moved downwardly.

Referring more particularly to Figs. 6 and 14: the following provision is made for holding the articles to be operated upon properly centered on and against the feed table during the time that they are being fed to the winding chucks 5-5 by the grippers 5|--5|. Side rails |55, |55' are supported adjacent and parallel to the respective side frames I-i with their lower edges contiguous the plane of the feeding table; these rails being in the form of plates which are rigidly secured to the vertically extending legs of brackets such as |51 (Fig. 14) each of which Iis provided with an outwardly extending bearing portion engaged in a split clamp bearing such as |58 secured to the upper edge of the side frames l-I in such manner as to permit the brackets |51 and the guide plates |5|-|56 to be adjusted transversely of the machine to provide for different width of articles being operated upon and serving to provide a parallel guideway for said articles. The guide plates |56-|56 carry rigidly secured thereto and projecting inwardly therefrom respective anchor rods Mil-|59', to the inner ends of which are anchored the respective flat springs |50| 50 which are positioned over the feed table and are bent downwardly and forwardly as clearly shown in Fig, i4 to resiliently press the articles being operated upon flatly against the feed table and also exert a substantially uniform pressure on said article during the time that it is being fed forward.

Wrapper table The wrappers to be used for wrapping calendars are placed in a pile or stack on table |6| (see Figs. 2l and 22; Sheet 5). It is essential that at all times the top wrapper of the stack be in a plane substantially parallel to the top surface of table ISI. Pull string wrappers have a string attached to them and when placed on a stack, the stack is thicker at the place where the strings are. To keep the top of the stack level, i. e., parallel, with the surface of the table, the table is made in two sections designated as IEIa and |5|b which are connected by hinges such as |52. Section |6|a carries bolted thereto a bearing block |63 into which is rotatably journaled the upper unthreaded end of a lifting screw |64 which extends downwardly through a guide block |65 bolted to a frame piece |56 rigidly attached toa frame comprising front and rear pieces itil- |58 and side pieces iBS-469'; said frame being supported on pedestals such as |10 resting on cross members ill-|12 which extend transversely between and are supported from side panels (see also Figs. 23 and 24). Secured rigidly to front frame piece |61 and extending vertically upwardly therefrom (Fig. 21) are a series of guides such as |13; and similarly supported on rear frame piece |58 are a series of like guides |14. Laterally adjustable vertical guides |15|'|5 are carried on side frame pieces |69- |69. Said guides serve to guide said table IGI and the pile of wrappers carried thereon; said end guides |15-i'i5 being adjustable for wrappers of different widths and adjacent notches being provided in table section ||5|a to accommodate their movement.

Table actuating means The lower threaded end of the lifting screw |54 (Fig. 22) passes downwardly beyond tie rod 6| (Figs. 22 and 24) and is screwed through the hub of an actuating screw block |16 (Fig. 24) which is journaled in a bearing bracket |11 supported on and rigidly clamped to tie rod 5| intermediate side frames The screw block |16 on its lower journaled end is provided with a circumferential groove into which is positioned a lock screw passing through bracket |11 to axially hold said block while permitting rotation thereof, and has integrally formed thereon a ratchet wheel |18 adapted to be intermittently driven by an oscillating pawl |19 pivotally supported as by a screw |80 secured to a pawl ring |8| rotatably journaled on an upper hub of screw block |16. Said pawl ring is suitably pivotally connected by a rearwardly extending link |82 (Fig. 6) to a 75 crank arm |83 rigidly secured to a cross shaft |84 which is suitably journaled in the side frames I-l. Shaft |84 has secured thereto, adjacent side frame I' (Figs. 26, Sheet 8, and 6, Sheet 2) an arm |85 which is pivotally connected by a rod 86 to a cam roller arm |81 pivotally journaled on shaft 39 and carrying pivotally secured to its lower end a cam roller |88 in driven engagement with a cam |89 rigidly secured to the cam shaft '35.' A helical tension spring |90 is secured to rod |86 at one end, and anchored to frame l at its other end, and serves to urge the rod and its connected parts in the opposite direction to that effected by the cam |89. It will therefore be seen 'that as the cam shaft 35 rotates the ratchet and stack which is indicated in the drawings as S. In

order to conveniently and quickly lower the table 6| when additional wrappers are to be placed thereon, a crank handle |9| (Figs. 21 and 22; Sheet 5) is secured to the lower extremity of lifting screw |64.

What has been said thus far applies to wrappers without pull strings. We will now describe how wrappers with pull strings are handled.

Referring particularly to Fig. 22: |92 indicates a stack of pull string wrappers. The portion of the stack with pull strings is indicated by |93 and rests on the suspended hinged portion of table llb, on the under side of which is securely fastened an arm carrying a cam roller |94 resting yieldingly on a cam |95 which is fastened to one arm of bell crank |96 whch is pivotally supported on the end of bracket |91 fastened to and supported by one of the guide rods |14. Fastened to the under side of table section |6|a` and extending downwardly is an arm |98 having at its end a pin tted slidably in slot |99 located in the other arm of bell crank |96. It is obvious that as the table |6| is raised by screw |64, cam |95 will move to the left and cause table section |6|b\ to gradually raise the sagging portion of wrappers and tend to keep the top wrapper of the stack level.

From the foregoing it will be obvious that the machine is adapted to utilize plain wrappers as "'well as wrappers having pull strings attached thereto, such pull strings serving the useful purpose of easily .tearing the wrapper off the rolled article such as a calendar. At this point it might be-mentioned that. the feed table which has been previously described in connection with readymade wrappers is adapted to be used in conjunction with correlated mechanism for making the wrappers from a roll of material and supplying them to the feed table. Such additional fea- `tures will be more particularly described hereinafter, but for purposes of clarity the means of feeding the wrappers from the table to the articles being wrapped will first be described.

Wrapper feeding means The wrapper feeding means comprises several cooperating mechanisms, and a brief introduction to these will be given first in order that the following detailed description may be more readily understood.

The forward edge of the uppermost wrapper is first separated from the stack by a suction finger engaging the forward edge intermediate the ends. Then air blasts are directed against the forward edge of the top wrapper respectively intermediate the suction finger and the wrapper ends. This serves to assure the removal of a single wrapper at a time when the uppermost wrapper is engaged by the suction lifting means which positions the wrapper to the rear of the table where suitable provision is made for applying the adhesive to the rear edge of the wrapper, and thereafter the wrapper is carried to and introduced in proper relation to the article being operated upon to be applied thereto.

Separating vacuum finger Referring more particularly to Figs. 21 and 23 (Sheet 5) a tubular sleeve 200 is rigidly secured to frame piece |66 and extends vertically upwardly therefrom, and telescopically slidably positioned therein is a pipe 20| whose upper end carries secured thereto an elbow 202 whose lower end normally is positioned parallel to and substantially in the plane of the top of the stack of wrappers |92. Intermediate its ends the tube 200 is provided with a slot through which extends a pin 203, the inner end of which is rigidly secured to the tube 20| and the outer end of which is attached to one end of a tension spring 204 whose other end is secured to the cross piece |66 to thereby resiliently hold the pipe 20| in a downward position. 'Ihe pipe 20| at its lower end is connected as by a rubber tube 205 to a suitable source of suction in a manner to be hereinafter more particularly pointed out. To the inner side of the pipe 20| (Fig. 23) is attached a lug 206, the lower face of which is in operative engagement with one arm of a bell crank 201 rigidly secured to a shaft 208 which is journaled on the under side of the cross pieces ISS-|69 and whose other arm by means of a link 209 to a crank 2|0 which is rigidly secured to a cross shaft 2| similarly supported by the cross pieces |69-|69. To the left end of shaft 2|| is rigidly secured a rearwardly extending crank arm 2 l2, whose outer end is pivotally connected by means of a rod 2|3 to one arm of a bell crank 2|4, which is journaled on a stud 2|5 rigidly secured to and extending outwardly from the side frame The other end of the bell crank 2|4 is pivotally connected by a rod 2|5 to the lower end of a cam arm 2|1 whose upper end is journaled on a stud 2|8 extending outwardly from and rigidly secured to the side frame the cam arm being provided intermediate its ends with a cam boss 2 |9 which is adapted to be engaged by a cam pin 220 eccentrically secured to a cam 22| which is rigidly attached to the cam shaft 35 (the cam face of 22| being utilized to actuate mechanism hereinafter referred to in connection with the wrapper lifting mechanism). It will be seen from the foregoing that upon rotation of the shaft 35, motion is imparted to raise the vacuum finger 202 to lift the forward edge of the uppermost wrapper from the stack |92 (Fig. 23) and that the tension spring 204 serves to return the parts to normal position and thereby again position the vacuum finger against the next succeeding wrapper in the stack.

Separating pressure nozzles Supported on the vertical guides |13 is a pipe 222 which supports interconnecting pipes 223-223 which carry secured to their respectively upper ends air nozzles 224-224 whose orifices wai.

nog,

extend in a direction forwardly at about a level or slightly below the lower end of vacuum finger 202. Pipe 222 is connected as by means of a rubber tube 225 to a suitable source of air pressure in a manner to be referred to more particularly following. It will therefore be seen that as the vacuum finger 222 lifts the forward edge of the wrapper, the air blasts from the nozzles 224-222 pass beneath the raised edge of the wrapper and serve to further separate the same from` the stack along its forward portion.

Wrapper lifting means Referring more particularly to Figs. 24, 25 (Sheets 6 and 7) and 27, 28 and 29 (Sheet 8): the vacuum cups for lifting and handling the Wrappers (Figs. 24 and 25) are supported on a transversely extending pipe or conduit comprising sections 226-225' supported at its opposite `ends for movement in the manner to be hereinafter described. These sections are interconnected by means of a manifold distributor 221 (see also Fig. 23) which is provided with oppositely disposed laterally extending branches .22B-228 and with oppositely disposed transversely extending nipples 229-229. To the lower face of manifold 227 is rigidly secured intermediate its ends a spring strip 230, to each the forward and rear ends of which is rigidly secured 'a suction cup support such as 23| having on its upper end a nipple 232 and at its lower end a rubber suction cup 223. The nipples such as 232 are connected respectively by means such as rubber hose 234 to the respective nipples 22 9-229.

On each side of the manifold 221 and spaced outwardly therefrom are positioned supporting blocks 23S-236 (Fig. 24) which are slipped over the respective pipes 22B-226' and are rigidly secured in position. Beyond these blocks and similarly secured are like blocks 23S-235. The said four blocks are provided with flat lower faces to which are secured flat springs like the springs 23|), previously described, and the outer ends of each of these springs carry vacuum cups like 233, previously described. Positioned above the pipe 226-226 is a sectional conduit 237-231 which is rigidly supported from 226-226 by clamps such as 238. The conduit 23T-23T is in communication with the branches 228-228 of the manifold 221 and is in communication with and supports pipe crosses (Fig. 25) 239-239' positioned respectively over the blocks 235-235, the other branches of said crosses being in communication respectively with tubes such as 234 which serve to connect the conduit 231-231' to the respective vacuum cups. Similarly, pipe tees 22u-26H3' are supported by and in communication with the conduits 226-226 being positioned respectively over the blocks 2355-235 and similarly being connected to vacuum cups on the outer arms, whereby the said cups are placed in communication with the conduit 231-237'. From the foregoing it will be seen that the various vacuum cups, comprising ten in all arranged in five pairs, are in communication with the manifold distributor 221 which, through the intermediary of pipe 226-226', is connected to a suitable source of suction as by means of the rubber tube From the foregoing it will be seen that the series of suction cups are so arranged as to receive substantially uniform pressure distribution and are flexibly mounted on the springs such as 23@ so as to yieldingly adust themselves to any reasonable irregularities in the surface of the stack of wrappers on the table |6| when the cups are lowered to contact the wrapper. The means of lowering the assembled suction cups will now be particularly described.

The ends of supply pipe 226 (Figs. 24 and 25) are respectively rotatably supported by bearings provided in blocks 242-242 suitably held from moving axially while permitting relative rotary motion between said pipe and bearings. As to certain details of construction identical to the duplicate mechanism on the left and right sides associated with the blocks 242-242', only one set of parts has been illustrated, it being understood that the prime suffix designates the duplicate parts in accordance with the procedure followed herein. Blocks 242-222' are rigidly secured to the upper ends of rods 243-243 (Figs. 29 and 31, Sheet 8), whose lower ends are fastened respectively, by suitable means, to plungers 244-242 slidably fitted into the bores of cylinders 22E-2&5' and rest upon the upper ends of coiled compression springs 226-245', by which they are yieldingly pressed against plugs Zell-24W which serve as heads for cylinders 24S-225' and through which pass rods 243-243'. The lower ends of cylinders 24S-225 are fitted over cylindrical portions 228-248 of blocks 229-229 and held rigidly thereto by means of pins. The blocks 222-222 are provided with bearings in which is rigidly attached a shaft 250, and are also provided with bearings in which a shaft 2.5i is rotatably fitted. Shaft 25| moves in an arc about 252 as a center. Pinned to shaft 25| on each end thereof are ends of respective crank arms 252-252 (see Figs. 36 and 31) to which are riveted respective stud pins 252-253 projecting outwardly and at right angles to respective crank arms 252-252. Crank arms 252-252 are pivotally connected by means of links 25d-254' to bearing blocks 222-242' which carry suction supply pipe 226 (see Fig. 29). Shaft 250 is supported rotatably at each end in bearings positioned in side panels of the machine.

Means for lowering and raising suction cups will now be described. Levers 2555-255 (Figs. 3l and 25) have one end pivotally fastened respectively to studs 252-255' which are bolted t0 respective frames l-l. The other en-ds of said levers are spring pressed against studs 252-253 and rest thereon. Pins 25l'-25l are fastened to said levers intermediate their ends and pivotally engage the upper ends of respective links 258-258 (see Fig. 33) whose other ends (Figs. 24 and 26) `are pivotally connected respectively to crank arms 22S-259 pinned to said shaft |82 (Fig. 26, Sheet 8) which, as previously described, is oscillated by cam |89 on shaft 35. It is obvious that as the high part of said cam E89 moves cam roller |28 to the right, cranks 253-259 pull links 258-258 and connected levers 25E-255 down thereby pulling cranks 252-252 down which in turn pulls blocks 222-229 down against pressure of springs 25E-Wifi (Fig. 3l), and as pipe 226 is journaled in bearings of said blocks and carries the series of suction cups, that the suction cups are also pulled down and are raised to normal position by springs 22S-2st' when roller cam t28 rests on circular portion of cam it@ (see Fig. 26).

Means by which suction cups transfer a wrapper from stack on table to position adjacent calendar in process of being wound will now be described. Securely pinned to shaft 25@ (Figs. l, 24 and 25) outside frame i is a crank arm 266 resiliently held in anti-clockwise position (Figs.

l and 6) by a spring 261, and also rigidly fastened to shaft 25d adjacent thereto is a crank arm 282 Whose end is pivotally attached by a rod 2t3 to a crank arm Zeil secured to shaft 3i) outside frame i. As previously described (Fig. 2G) shaft 39 is oscillated by cam i135. It is obvious that rotary motion of cam |45 transmits to shaft 25@ an oscillating movement which causes the suction cups to be moved back and forth over an arc of approximately ninety degrees (see Fig. 36).

The means by which the wrapper is positioned adjacent gluing bet to have glue applied to one edge will now be described. Contour of face of cani .i il@ is so designed and the intervening mechanism so arranged as 'to cause the cylinders 245- 25.(5, and the vacuum cup assembly carried thereby, to travel on its upward stroke slightly past the vertical position. However, the preferred construction also requires that the suction cups descend vertically to pick up a wrapper and that said cylinders be stationary and positioned approximately vertically at the time that the suction cups are being pulled down and raised. Theprovison for this second requirement Will now be described with reference to Figs. 25 (Sheet 7), 32 (Sheet 4) and 33 (Sheet 8). Secured rigidly to the outer cross pieces HSS-4&9 of the table (see also Fig. 2l) respective pivot brackets the respective cuter ends of which extend into horizontal slots Zet-266' formed in bumper blocks Zai-Ztl which are suitably held axially thereon so as to permit forward and rearward movement (see aso Fig. 32) The rear ends *of said. bumper blocks l--Ziil are provided also with respective slots 253--28, each having a horizontal a vertical leg (Fig. 32), and through. said respective slots extend the inner ends or the studs 25e-$56 (heretofore dey"sc ribed.) on which the rear ends of said blocks are suitably held axially While permitting horizontal well as vertical movement, within the confines of said slots. Tension springs 259-259' normally urge said blocks forwardly so as to position their forward ends, atrthe limit oi' their forward throw, substantially in contact with the rear faces of respective cylinders 24E-245 when said cylinders are in substantially a vertical position.

Directly beneath respective bumper blocks 26l-25'5 are positioned arms 2`lG--2l rigidly secured, intermediate their ends, to the 'opposite ends ci a cross shaft 2l! which is rotatably supported in journals 2l2--2l'2 attached on frame .pieces MSL-59. The rearwardly extending ends of said arms Z'lil-Zii contact the respective bumpers Btl-Ztl', and their respective forwardly extending ends are pivotally connected by downwardly extending rods 2'33-2'13 to respec- `:tive cranks 2id-2M' (Fig. 24) rigidly secured to the cross shaft EM heretofore described as oscillated by cam i8@ (Fig. 26). When cylinders 24E-245', on their upward stroke, reach substantially a vertical position they engage the respective bumpers 2157-251 and are held from further movement by pins 25E-25E (Fig. 32) which normally are positioned at the upper ends of the vertical leg of slot 263. While 245-245 are held vertically stationary, cam M5 continues to rotate with shaft 35, but the mechanism connecting @i5-2435 to cam roller Mill is stationary and during this period the face of cam N5 moves away from roller Mii but immediately bumpers 28?-261 are tripped, said cam roller contacts face of its said cam. As crank arms 2li-274 and rods 213-273 move down, levers 21E raise the rear ends of bumper blocks Ztl-2571 until pins E56-255 enter the horizontal legs of slots Zed-25S when spring Ell (Fig. l) pulls said bumpers against the pressure of springs Ztl-261 and to the rear until pins 23d-256 Contact the forward ends of respective slots 26E-263', thereby allowing cylinders IME- 235' to reach the end of their upward stroke (see Fig. 33). When said cylinders start on their down stroke, said bumpers follow until the vertical legs of slots 260--28 are pulled down over their respectively engaged pins by springs 26?.

Referring to Figs. 29 and 34: each of the bearing blocks M2- 242' carries securely fastened thereto respectively downwardly extending pairs of at springs ZIE-Elli. Stud pins Z'lB-Z'IG are rigidly secured to cylinders 2155-245 and project at right angles thereto and are respectively positioned adjacent the lower ends of said pairs of springs and between the lower converging springs of each pair, being spring pressed substantially equally thereby and yieldingly holding the suction cups in a plane at right angles to plane axially cutting shaft 25o and cylinders 26m- 245' (see also Fig. 24).

Referring more particularly to Figs. 34 and 25: cam. arms 2li-2li are attached rigidly to the bearing blocks 21372-262', adjacent the point of attachment of respective spring arms 27E-N5', and extend rearwardly with their respective lower edges inclined upwardly and in operative engagement with the respective grooved rollers 278 pivotally mounted on supporting brackets 239-- Zl which are suitably rigidly secured to the respective side frame structures of the machine. For purposes of illustrating the location of these cam arms and rollers in plan view, they are illustrated in Fig. 25 but the supporting brackets have been omitted for purposes of clarity relative to the remaining structure. It will be understood from the foregoing that the spring arms 'N5- 2l5 normally position the cam arms relative to their respective cam rollers in the position illustrated in Fig. 34, when the cylinders 255-245' are in vertical position; and that as the said cylinders are tilted rearwardly from the vertical position the cam levers ride up on the cooperating cam rollers thereby tipping the plane of the suction cup lips and the wrapper carried thereby rearwardly and upwardly (Fig. 38) so that the rear edge of the wrapper is properly positioned for the application of glue thereto in the manner to be described following.

Means for applying glue to wrapper A glue fount (see Figs. l, 35, Sheet 1, and 14, Sheet 4) is employed of the type ordinarily used by those skilled in the art. A. trough 2853, to hold glue, or other suitable adhesive, is supported at its respective ends by end pieces ZEN-28| (Figs. 24, 25) carried on brackets 2&32-282 secured to the side frames l-i, said end pieces being provided with bearings into which is rotatably litt-ed a shaft 2233 to which is rigidly pinned a ount roller 28d (Figs. 24 and 25) which is partly submerged in glue when the machine is being operated. The end pieces 28h-213i preferably are made in two parts, upper and lower, clamped together by thumb screws. The upper part is removable so that glue roller 2M may be removed for convenience in cleaning both trough and roller. A scraper, fastened to the trough, one edge of which is adjacent to glue roller and extending axially its length, serves to wipe most of the glue from the roller, leaving only a light nlm of glue thereon. A pulley 285 is pinned to shaft 263 and is driven by a belt (not shown) from a suitable source such as power shaft H (Figs. 24 and 25).

Upwardly projecting extensions 2371-281 of respective side frames i-i' (Figs. 25 and l) are provided with bearings in which a shaft 28B is rotatably journaled at its respectively opposite ends. Said shaft carries rigidly secured thereto, adjacent its supporting brackets, arms 289--28t Whose forwardly extending ends freely rotatably support the axle ends of a gluing roller 2&9. The arms 23d- 289' are each made and arranged as follows (Fig. 25). The hub Edi is pinned to shaft 23S and carries a sleeve 292. The journal end 2% is provided with a stem slidably seated in sleeve 222 and having a reduced portion passing freely through a cooperating bore in end 29| and shaft 288 and provided at its outer end with a nut 29d. A coiled spring (not shown) surrounds the reduced portion of the stem within the sleeve and resiliently holds the end 2&3 outwardly, being adjustably limited by nut 294. Thus the roller 2% is resiliently held outwardly and yield able inwardly for purposes to be later described.

Referring to Fig. to the left end of shaft 235i is fixed a crank arm 2te pivotally attached at its free end by a link 296 to the free end of a crank ttl, the hub of which is rotatably tted to stud pin 298, screwed to machine frame (see also Figs. 24 and 25) A link 29% connects, by suitable wrist pins, the free end of crank 2.9i and one arm of a bell crank 25MB, the hub of which is rotatably i fitted to pin fixed in frame i. Link 35i pivotally connects the other end of bell crank S with the lower end of a cam. lever 3&2 which is pivotally supported at its upper end on stud pin 3D3 screwed to frame i and carries intermediate its ends a cam roller Still which is spring pressed by tension spring 365 against the face of the cam 22| (Figs. 6 and 35) which is pinned to shaft 35 as previously described. It is obvious that the motion cam 22E gives to cam lever 3&2 when transmitted to shaft 28S causes gluing roller 295i to move in an arc about 238 as a center. At the lower end of its travel, gluing roller contacts fount roller 28d and as the latter rotates partly submerged in glue a nlm of glue is by this means applied to the surface of gluing roller 29d which in turn applies a film of glue to edge of a wrapper such as W (see Figs. 36 and 38) The preferable construction by which this is accomplished will now be described (see Figs. 36, 37 and 38).

The shaft ends 39E-3% of a belt supporting stretcher frame, designated in its entirety as Sill (Figs. 2li-25), are suitably supported in bearings provided in the extensions Ztl-Ztl of the side frames l-l'. This belt supporting frame comprises (Fig. 37) end pieces 393-303 (see also Fig. 2d) integrally attached to the respectively opposite ends of a bar 3M whose lower edge is provided with a concave groove whose crosssectional curvature is slightly greater than a lower belt roller Slli whose ends are suitably journaled on pintles carried in countersunk bores in the end pieces 3D3-SMV; so that when the roller is in position, its ends are concealed but freely rotatably held and its periphery is recessed in the groove of bar 309 whose opposite side faces are substantially tangential to said roller. Adjacent the uper ends of said end pieces 38E-13% suitable journals pivotally support a cooperating belt roller 3l l, and an intermediate idle roller 3&2 is journaled in suitable adjustable brackets 3l3 carried'on said end pieces; AOne end of the axle of the upper roller 3H extends outwardly and carries vpinned thereto a ratchet wheel tiri in operative engagement with a driving pawl 'Si carried by Va Vrelatively stationary part of the frame such as extension 2871 of the side frame i. An endless belt 316 surrounds the rollers tit, 392 and 3l I, and is held in place between vthe end pieces 3dB-3mi with its lower rearmost portion passing closely over and supported by the rear face of the bar 3ll9. The belt frame and belt carried thereby are adapted to be fed about the axis of the shaft ends 36B- oy the means to be now described. It will ce seen from the foregoing that belt SIS acts as a movable platen, backed up by the bar 309; and that the wrapper edge is operated upon between the roller and platen to apply adhesive thereto.

Gn the right side of the machine (Figs. 24, 25 and l) the shaft end 365 has nxedly pinned thereto a double end crank arm 3H', the forward end of which is resiliently anchored to the frame extension 28? by a helical tension spring SIB, and the rear end of which is pivotally attached to the upper end ci' a connecting rod 3 i9, whose lower end is pivotally attached to a piston 32E! operatively positioned in a vacuum cylinder 32E which is suitably supported on the outside of frame l by a bracket 322 and is operatively connected, by means of a conduit such as a rubber hose 322i, to the line to suction line which supplies suction to the vacuum cups 233.

A rod 32d (Fig. 36) is suitably attached by end pieces to the journal ends 293-293' of the glue roller supporting arms 25E-289' so as to be positioned parallel to said roller axis approximately above the forward point of the periphery of said roller on a horizontal line passing through its axis of rotation. The purpose of this rod 321i is to Contact the edge of a wrapper ahead of the gluing roller and to position it against the belt to have a nlm of glue applied to it when contacted by gluing roller. The edge of the wrapper having been bent at approximately a right angle and held against the surface of the belt prevents the gluing roller from pulling the wrapper from its correct position as the lm of adhesive is applied. When the suction cups 233 descend and rest on top of wrapper stack, the air pump creates a partial vacuum in the line which causes the wrapper to be lifted by the suction cups. As the suction chamber 32! is connected to same suction line, a partial vacuum is created in the suction chamber and the piston 32@ is drawn down to bottom of chamber against the tension of spring EIS, and shaft tilt is rocked by lever tit so as to move belt Si@ toward gluing roller 29u so that as the gluing roller is raised rod 32d presses the rear edge of wrapper W (see Fig. 38) against the belt tit which in turn is pressed against plate 3&9. Since the gluing roller is yieldingly spring pressed by means of springs adjustably held in its supporting arms 2g l-ES i any desired pressure of gluing roller against edge of wrapper can be obtained. As the belt SIG and its carrying frame @di move toward the gluing roller, the ratchet wheel (Fig. 37) 3M moves with it and ratchet wheel teeth slide over the end of ratchet pawl Slt, but when the parts move back to normal position the 'pawl engages a tooth on the ratchet wheel, and as the pawl is stationary the wheel turns and moves the belt siii to provide a new place on the belt for Vthe next wrapper to have a lrn of adhesive applied 

